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Influence of coolant tube curvature on film cooling effectiveness as detected by infrared imageryThermal film cooling footprints observed by infrared imagery from straight, curved, and looped coolant tube geometries are compared. It was hypothesized that the differences in secondary flow and in the turbulence structure of flow through these three tubes should influence the mixing properties between the coolant and the main stream. A flow visualization tunnel, an infrared camera and detector, and a Hilsch tube were employed to test the hypothesis.
Document ID
19800002841
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Papell, S. S. (NASA Lewis Research Center Cleveland, OH, United States)
Graham, R. W. (NASA Lewis Research Center Cleveland, OH, United States)
Cageao, R. P. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
November 1, 1979
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
NASA-TP-1546
E-066
Report Number: NASA-TP-1546
Report Number: E-066
Accession Number
80N11087
Funding Number(s)
PROJECT: RTOP 505-04
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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